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Type: Posts; User: n2zon

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  1. Replies
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    779

    In the third picture, you might someday want the...

    In the third picture, you might someday want the threading stop shown in the middle, on the bottom. If, of course, it fits your cross slide dovetail.
  2. Well, I can use "democrat" and "republican" in...

    Well, I can use "democrat" and "republican" in the same post, too, but that doesn't mean I don't know the difference. I was specific about the surface finish he says he thinks is needed, and simply...
  3. Again, this is not an imaging application....

    Again, this is not an imaging application....
  4. I'm not going to try to make the part. For one...

    I'm not going to try to make the part. For one thing, this is (far) beyond my capabilities.

    He has been using a microscope for inspection. He was initially focused on surface finish, but I...
  5. This is not just for cosmetics. It's intended to...

    This is not just for cosmetics. It's intended to be part of an optical device.

    I'll ask him about flatness (clearly it's a curved surface). I asked about wavelength but don't have an answer back...
  6. Who can do inside surface finishes in single-digit microns?

    I know someone working on a prototype that requires an aluminum part with a very smooth finish to reflect light.

    The part requires six radial, stepped holes with 45* steps in a center-drilled...
  7. See:...

    See: https://www.practicalmachinist.com/vb/general/accurite-25-pin-6-pin-adapter-367891/#post3413236
  8. A single-piece spacer the same depth as the...

    A single-piece spacer the same depth as the bosses is used on mine, in the center of the scale (or so). The mount is likely bolted to the spacer. The spacer is bolted to tapped holes in the lathe...
  9. I'll see whether I can get pics from my 1440's...

    I'll see whether I can get pics from my 1440's DRO attachment without taking things apart later today or tomorrow. It's a Sargon scale, if that matters.
  10. Replies
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    After many similar experiences, I called the...

    After many similar experiences, I called the local delivery manager. She was able to add some data to their system that described our house well enough that we have not had a problem for a long time...
  11. Replies
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    Too small. (Not the lathe. My shop.)

    Too small. (Not the lathe. My shop.)
  12. Backups...

    I worked in the computer industry for over 40 years. Two favorite sayings:

    "Blessed are the pessimists, for they have made backups." And,

    "I thought *you* made the backups!"

    Computer...
  13. Immediately after the driveway was put in, as...

    Immediately after the driveway was put in, as part of the original contract, the paver saw cut two rectangles and poured two concrete pads for our Class A. If the white bothers you, have the...
  14. Imagine a perfect sphere, 300' in diameter. ...

    Imagine a perfect sphere, 300' in diameter. Whatever it can touch before it touches something else can be hit by lightning. Whatever it can't touch without touching something else first is a...
  15. I happen to live right in the most active zone...

    I happen to live right in the most active zone for lightning in NY, per that map.

    FL is definitely the Lightning Capital of the USA, and possibly the world...
  16. Different regions have strikes with differing...

    Different regions have strikes with differing severity. I believe the right practice is (or was, when I did all the reading many moons ago) is to pick a percentage of the strongest recorded strikes...
  17. There are a couple of distinct levels of...

    There are a couple of distinct levels of lightning protection that I know of, perhaps more these days.

    One is to protect the structure. The other is to protect the structure and its electronic...
  18. My dumb question is why the design calls for a...

    My dumb question is why the design calls for a ball joint end, rather than a bearing in a pillow block. If necessary to support loads from different directions, one with four bolt holes, or two...
  19. Replies
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    W.O.W. (Plus more characters to make 10. ...

    W.O.W. (Plus more characters to make 10. Jeesh...)
  20. Replies
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    Wow. I'm shocked at the low price. It even...

    Wow. I'm shocked at the low price. It even comes with a DRO! ;-)
  21. Replies
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    1,478

    I can see I wasn't clear. It's more than an...

    I can see I wasn't clear. It's more than an imperial/metric setting. The Acu Rite II works with a number of different scale resolutions. There's a table in the book for setting the internal...
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    1,478

    It's *alive*! Followed the pinouts you...

    It's *alive*!

    Followed the pinouts you provided, and it moved with the carriage. Cool!

    Then I put a dial indicator on it, and saw that it was reading 1.27X the travel. It took a few seconds...
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    I might get back to this tomorrow. Today was...

    I might get back to this tomorrow. Today was helping a friend rip two layers of shingles off a roof. I'm gonna hurt _everywhere_ tomorrow morning, so many activities will be Right Out. Some light...
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    Colors don't match...no brown wire on the Acurite...

    Colors don't match...no brown wire on the Acurite end. Trying to dissect the molded connector to verify the pins, but it's slow going.

    Thanks!
  25. Replies
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    Give that man a Cigar! What did we ever do...

    Give that man a Cigar! What did we ever do without cell phone cameras? A close-up of the head shows the name clearly. A Sargon it is indeed. It has the same number of wires as an AcuRite. Any...
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